Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

Design of the Ground Resistance Measuring System to the Earth-Noise

  • Jung Min-Jae (Department of Electrical Engineering Chungnam National University) ;
  • Joo Hyung-Jun (Department of Electrical Engineering Chungnam National University) ;
  • Lee Ki-Hong (Department of Electrical Engineering Chungnam National University) ;
  • Oh Sung-Up (Department of Electrical Engineering Chungnam National University) ;
  • Jung Jae-Ki (Hanbit EDS) ;
  • Seong Se-Jin (Department of Electrical Engineering Chungnam National University)
  • Published : 2001.10.01
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Abstract

Generally, grounding systems are responsible for the safe operation of a power system. Their performance guarantees equipment protection and personnel safety under condition of the limited ground potential rise and touch voltages as well as step voltages under ground fault conditions. Therefore, it is necessary to measure the ground resistance frequently for checking the performance of grounding system, In this paper the ground resistance measuring system using digital signal processor and high-performance L-C resonant band pass filter is presented. The signal current magnitude for measuring ground resistance in this system is $10^{-1}[A]\;to\;5\times10^{-2}[A]$ and the current frequency is 30[Hz].

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